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Shown from left to right are the neonate, 1-year-old, 5-year-old, and 10-year-old phantoms. Height and weight values are 51 cm and 3.5 kg for neonate, 75 cm and 10 kg for 1-year-old, 110 cm and 19 kg for 5-year-old, 140 cm and 32 kg for 10-year-old. The skeleton of each phantom is formulated with bone-equivalent materials based on the appropriate bone composition typical of each age.
